FlatWinder Powered Block — 24-volt Electric

Harken FlatWinder Powered Block — 24-volt Electric

The Harken FlatWinder powered block is a self-contained, low-profile electrically-powered system for mainsheet traveler adjustment. This powerful block is easy to use and offers sailors huge benefits in mainsail control, giving them the means to quickly depower the rig and delay reefing when the wind picks up. Like a compact captive winch for the traveler, the FlatWinder is completely self-contained and operates in both directions, allowing the car to move anywhere on the track while also keeping the traveler line off the cockpit floor.

The block's wide-diameter drive sheave mounts on a sloped base, forming an angle with the sheave top to contain the line so it doesn't push against the block walls. This progressive grip exerts just the right amount of friction to keep wear on the line and components minimal. The compact horizontal motor is housed neatly belowdeck with a maximum working load of 250 kg (551 lb). When used with 10 mm line and a 4:1 purchase, this translates into around 1000 kg (2205 lb) of pull. Line speed with no load is 35 m/min.

A Harken Dual-Function Control Box is included. This integrated load controller and control box conserves space and, with half as many wires as separate systems, is easier to install. Harken recommends installing two space-saving, dual-function Digital System Switches, one button to port and the other to starboard, for activation from both sides of the boat. The FlatWinder fits monohulls 15–18 m (50–60'); catamarans 14–15 m (45–50'). It is available in 12V or 24V depending on the boat's electrical system. Switches and circuit breakers are not included. The FlatWinder eliminates the need for winches, making the deck cleaner and easier to navigate.

Key Features

• Self-contained, low-profile electrically-powered traveler adjustment system
• 24-volt electric motor housed neatly belowdeck
• Bidirectional operation for flexible car positioning
• Maximum working load of 250 kg (551 lb)
• Line speed of 35 m/min (115 ft/min) with no load
• Compatible with 10 mm (3/8 in) line
• Wide-diameter drive sheave with sloped base for progressive grip
• Dual-Function Control Box included
• Designed for monohulls 50–60' and catamarans 45–50'
• Eliminates need for separate winches, reducing deck clutter